title: [Substantiation of the mean working day maximum allowable concentrations of dusts with differing degrees of fibrogenesis].
abstract: On the basis of developed by the author mathematical models of pneumoconiosis morbidity and of methodological techniques of dusts dividing according to the degree of fibrogenesis under exposure to various concentrations of dusts differing in fibrogenesis. In the author's opinion, working conditions can be considered safe if the probability of pneumoconiosis does not exceed 0.1% for the 40 years length of working. On this basis mean working day concentrations, at which the probability of the development of the mentioned disease does not exceed 0.1%, are proposed as mean working day MACs. Average working day MACs for the whole range of dusts fibrogenesis have been calculated. The obtained in this way average working day MACs for the least fibrogenic dusts equal 6 mg/m3, and for the most fibrogenic dusts - 0.2 mg/m3.
authors.forename: V S
authors.initials: VS
authors.lastname: Beletskiĭ
mesh_terms: D000395:Air Pollutants, Occupational; D004391:Dust; D006801:Humans; D008452:Maximum Allowable Concentration; D011009:Pneumoconiosis / Q000517:prevention & control*
chemical_list: D000395:Air Pollutants, Occupational; D004391:Dust
vernacular_title: Obosnovanie srednesmennykh predel'no dopustimykh kontsentratsiĭ pyleĭ s razlichnoĭ fibrogennost'iu.